WHAT COULD MY PROBLEM BE?

1997 Pontiac Bonneville • 125,000 miles

Hello again First let me thank you for helping me last week. I am still having the same problem my car won't start. I turn the switch on and all I get is the gauges will move for a second or two. The motor won't turn over and the car won't start. This what I've seen my security lights flashes so I had a professional mechanic bypass the VATS system. ( Orange wire under dash that holds two white wires) But still my security light flashes. I changed the BCM with one that has the same part number and still my car want start. I purchase a theft control module but can't figure out where to install it. Is there any advice you can give me? I have attached a picture of the theft deterrent module in hopes that you can tellme where it goes. Please help me that car was running perfectly then it just died on me. But the car is in excellent condition.I thank you in advance!Thank you!

I hope you had a Merry Christmas! I spent most of my time trying to figure out why my car want start. I am still having the same problem. When I turn the switch to the on I get nothing. The gauges move for about a half a second, but the car will not start. I did notice that fuel pump will ingauge for a sec or two. But it seems that I'm not getting fire to the starter or the injectors. I have checked all connections and they are good. Still I can't seem to locate the theft deterrent module. Do you have a how to video? Anything you can do to help me I really would appericate it. Thanks again!